44024213021 has 4 divisors (see below), whose sum is σ = 44199608544. Its totient is φ = 43848817500.

The previous prime is 44024212987. The next prime is 44024213027. The reversal of 44024213021 is 12031242044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44024213021 - 2¹⁸ = 44023950877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44024213027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87697385 + ... + 87697886.

It is an arithmetic number, because the mean of its divisors is an integer number (11049902136).

Almost surely, 2^44024213021 is an apocalyptic number.

It is an amenable number.

44024213021 is a deficient number, since it is larger than the sum of its proper divisors (175395523).

44024213021 is a wasteful number, since it uses less digits than its factorization.

44024213021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175395522.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 44024213021 its reverse (12031242044), we get a palindrome (56055455065).

The spelling of 44024213021 in words is "forty-four billion, twenty-four million, two hundred thirteen thousand, twenty-one".